parkerizing

Looking to duplicate the finish on my Remington 700 PSS. I'm having an oversized recoil lug put on that's in the white right now. I think that the finish I'm looking for is called "Manganese Phosphate Parkerizing", but I'm not sure. What I'd like is to have the whole rifle done so it all...

I have been blasting everything with alum ox and had a friend ask about use the duracoat parkerizing solution as a prep for various coatings. I understand the concept of giving the coatings something to hang on to but is the parkerizing better or equal to blasting? This would be for both...